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YTR-YT6647 PART NUMBER
Yella Terra Ultralite Roller Rockers LS1 LS2 1.8 x 1.7 HYD Ratio YT6647$710.00Fits Chevy LS1 LS2 Factory and a\Aftermarket Head, 1.8 x 1.7 Ratio, Non Adjustable, 8mm Car Screw, Set of 16 Rocker Arms, Max Spring Pressure 400 lbs, Max Spring Diameter 1.550" Learn More -
YTR-YT6723 PART NUMBER
Yella Terra Ultralite Pro Roller Rockers LS1 LS2 1.8 x 1.7 HYD Ratio YT6723$833.00Fits Chevy LS1 LS2 Factory and Aftermarket Head, 1.8 x 1.7 Ratio, Non Adjustable, 8mm Cap Screw, Set of 16 Rocker Arms, Max Spring Pressure 480 lbs, Max Spring Diameter 1.550" Learn More